A new poll conducted by The Associated Press-NORC Center for Public Affairs Research reveals that grocery prices are a significant source of stress for most U.S. adults. Knewz.com has learned that nearly half say it is a “major” stressor in their lives, while only a small fraction report no concern at all. A rising cause for stress among Americans According to the survey, 50% of Americans say groceries are a “major” source of stress, while 33% report it as a “minor” one. Only 14% are not